ZFS drives reading constantly

[slick_vik]

After upgrading to 6.12 I went through the process of converting my cache drive and 1 array disk to ZFS.  The drive on my array that I converted to ZFS is used for storage and is not normally accessed and almost never spins up in routine use (used for backups occasionally).  

 

For some reason since converting to ZFS, I get constant reads on the array drive that never really stops.  The cache drive also has an extremely high amount of reads without anything going on with the server.  I tried updating to the latest rc release to see if it would get fixed and it hasn't. 

 

I have attached an example image showing how the ZFS drives are being read an extreme amount and I have attached my diagnostics files.

 

Thanks,

Vik

server-diagnostics-20230711-2201.zip

Edited July 12, 2023 by slick_vik

[JorgeB]

Try uninstalling the ZFS master plugin, or not keeping the browser opened on the main GUI page, that will cause small reads by the plugin, and also prevent disks to spin down, or make them spin up.

[boomam]

Having this issue too, on 6.12.2 - ZFS Master doesn't exist for me, (it did a few weeks ago as i wanted to check it out though).

There's nothing actually on the array either, other than my media.  
Everything 'active' is on a ZFS pool, and the only thing that can access the media is Jellyfin, which is off right now.

 

Seemed fine on 6.12.1

Edited July 12, 2023 by boomam

[slick_vik]

@JorgeBI tried your suggestion.  I uninstalled ZFS Master and I made sure all browser windows are closed.  It didnt help.

 

This morning I upgraded to the newest RC of unraid and I left for the day (no browsers open all day) and I got the same thing.  I have attached the new diagnostics and the new image of my main screen.

 

 

server-diagnostics-20230713-2305.zip

[JorgeB]

You need to try and find out what's reading or writing to it, there's a plugin that may help:

 

[slick_vik]

OK running file activity plugin the only thing that comes up is my VM running on my cache disk yet the read count on my ZFS drives keeps increasing.  Nothing on that drive is showing up on File Activity.

[Laov]

On 7/14/2023 at 11:18 AM, JorgeB said:

You need to try and find out what's reading or writing to it, there's a plugin that may help:

 

I am having the same issue.

 

Aparently these files are being used:
** Disk 1 **
Jul 29 18:19:03 CREATE => /mnt/disk1/1616079831.tmp
Jul 29 18:19:03 OPEN => /mnt/disk1/1616079831.tmp
Jul 29 18:19:03 MODIFY => /mnt/disk1/1616079831.tmp
Jul 29 18:19:03 OPEN => /mnt/disk1/1616079831.tmp
Jul 29 18:19:03 DELETE => /mnt/disk1/1616079831.tmp

 

I am not sure where they come from...

 

Apparently it was the ZFS plugin that kept spinning up my drives every time I entered the Main tab....

Edited July 29, 2023 by Laov

[madejackson]

I think I found the issue leading to this thread and I explained my solution here: